Aquarium Thermometers: Digital Aquarium Thermometers & Thermostats

Aquarium Heating: Heater Types, Wattage & Setup Tips

There's a wide array of heating solutions to provide the optimal temperature for your aquatic friends to thrive. Dive in to navigate options & ideal wattage.

Updated on July 17th, 2026

Home & Habitat

Fish Tank Temperature Guide: Ranges by Species

Learn general guidelines and the many factors that go into attaining and stabilizing the correct water temperature and how to acclimate your fish.

Updated on July 17th, 2026

Care Sheets

Aquatic Pet Safety: Keep Your Home Aquarium Pets Healthy & Safe

Learn how to safely handle your aquatic life to avoid toxin & bacterial exposure. Find aquatic life care supplies at your neighborhood Petco pet care center.

Updated on October 23rd, 2025

Care Sheets

Aquarium Water Quality: Master Healthy Fish & Crystal Clear Tanks

Learn how to test your aquarium water. Poor water quality stresses fish, which leaves them susceptible to disease and possibly death.

Updated on October 23rd, 2025

Care Sheets

Master Aquatic Plant Care: Lush Aquarium Plants & Happy Fish

Tanks with live plants can be excellent additions to your home, bringing a touch of nature indoors. Learn how to take care of aquatic plants.

Updated on November 6th, 2025

Vet Q & A

Should I remove my fish before adding a new heater to their tank?

I would recommend using an aquarium thermometer to check the starting temperature and that the heater is working correctly. The heater should have a thermostat which switches on and off to keep the temperature constant. You can leave your fish in the tank during this process if you can monitor with a thermometer.